*{
    margin: 0;
    padding: 0;
}
.box li{list-style: none;
    width: 200px;
    height: 30px;
    line-height: 30px;
    text-align: center;
    border: 1px solid #000;
    float: left;}
.box_2 li{
    list-style: none;
    width: 200px;
    height: 30px;
    line-height: 30px;
    text-align: center;
    border: 1px solid #000;
    float: left;
}
.box{
    width: 1015px;
    height: 30px;
    margin: 0 auto;

}
.box_2{
    width: 1015px;
    margin: 0 auto;
}
.box_3{
    position:absolute;
    top:0;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0,0,0, 0.3);
    display: none;
}
.box_4{
    width: 400px;
    height: 600px;
    background-color: aliceblue;
    position: absolute;
    top: 50%;
    left: 50%;
    bottom: 50%;
    right: 50%;
    margin-left: -200px;
    margin-top: -300px;
    border: 1px solid #000;
}
.box_4 li{
    list-style: none;
    margin-top: 50px;
    padding: 20px;
}
.tjj{
    margin-top: 50px;
    margin-left: 180px;
    width: 60px;
    height: 30px;
    background-color: #15f;
    text-align: center;
    line-height: 30px;
    position: relative;
  
}
.tjj a{
    text-decoration: none;
    color: aliceblue;
}
.b_ts1{
    position: absolute;
    font-size: 12px;
    top: 100px;
    left: 67px;
    display: none;
}
.b_ts2{
    position: absolute;
    font-size: 12px;
    top: 210px;
    left: 67px;
    display: none;
}
.b_ts3{
    position: absolute;
    font-size: 12px;
    top: 320px;
    left: 67px;
    display: none;
}
.b_ts4{
    position: absolute;
    font-size: 12px;
    top:440px;
    left: 67px;
    display: none;
}
.l_1{
    width: 1015px;
    height: 30px;
    margin: 0 auto;
}
.l_1 li{
        list-style: none;
        width: 200px;
        height: 30px;
        line-height: 30px;
        text-align: center;
        border: 1px solid #000;
        float: left;
    }
